Types of Lasik

Femto Z-LASIK

The latest Swiss Technology for Femtosecond Laser Eye is Surgery at Banaji Eyecare.

Over the years, LASIK has become the answer for people’s need to correct their vision. These days, many surgeons perform laser eye surgery with a laser called femtosecond laser. Unlike the traditional microkeratome surgery, which used metal blades to create corneal flap, femtosecond is a blade-free LASIK procedure used to create a more precise flap.

Banaji Eyecare uses the precise Swiss technology Zeimer laser for blade-free LASIK eye surgery. With Z-LASIK, performed on Zeimer femtosecond laser, Banaji Eyecare has introduced the most technologically advanced system for refractive procedures in India.

In femtosecond laser, the risk of creation of a partial flap or hole in a flap, as observed in microkeratome procedure is nil. Moreover, vision disturbances are low with blade-less flaps as against those created in microkeratome procedure.

Custom LASIK

At Banaji Eyecare, we offer Custom Wavefront LASIK, one of the new procedures developed for laser vision correction. Although the surgical steps and procedure followed in Custom LASIK are same as standard LASIK, the two procedures are very different. The difference between these two lies in the safety of the procedure, the pre-operative assessment, the technology of laser delivery on the cornea, the outstanding quality of vision obtained and the virtual elimination of side effects in Custom LASIK. In fact, LASIK patients who have trouble with night time vision and halos around lights can benefit by Custom LASIK.

At Banaji Eyecare, we offer this revolutionary method of laser vision correction with the world’s most advanced German excimer laser platform - The Carl Zeiss excimer laser, The Carl Zeiss WASCA aberrometer with CRS Master analysis system and the Carl Zeiss Topographer.

Since 1994, Dr. Banaji has pioneered in LASIK procedures in India. He has taught and lectured on the LASIK procedure to hundreds of surgeons both nationally and internationally.

Why Opt for Custom Wavefront LASIK?

Custom LASIK uses the wavefront technology, originally developed for the military and aerospace industry, and more recently has been adapted for laser vision correction. Rays of light enter the eye as flat sheets known as wavefronts. If the optical properties of the eye are perfect (which is unusual), these wavefronts exit the eye in the same manner as they entered i.e. regular, flat sheets.

When the optical system of the eye has imperfections, the wavefronts exit the eye as irregular distorted sheets of light that look much like the surface of a potato chip. This distortion of the perfect flat wavefront is known as an aberration and its measurement is made possible with an instrument called an aberrometer such as our Carl Zeiss WASCA CRS Master. The aberrometer generates a map of this distorted wavefront, which is known as a wavefront map.

This wavefront map is the fingerprint of your eye’s individual optical defects. Each eye is unique. No two eyes are the same. Your left eye is completely different from your right and there is not another eye in the world that has your individual visual fingerprint! Your eyes’ wavefront map is as individual to you as your own fingerprint or DNA. This wavefront map is digitally transferred to the Carl Zeiss MEL 80 excimer laser, which then re-contours the cornea to correspond to your individual wavefront map, thus correcting your vision to an unprecedented level of accuracy.

We now have the ability to measure each eye’s individual wavefront (fingerprint) and customize our laser treatment to precisely correct your particular optical aberration. Standard LASIK as done in the past would be akin to buying a suit or dress,off the rack – one size fits all! Custom LASIK is like having one tailored specifically to your measurements.

CRS Master Reading & Analysis

Wavefront map generated

Map Transferred to Laser

Custom wavefront map is now lasered

How much do you see? The quantitative measure of vision as calculated on the visual charts depends on lower-order aberrations you possess. Lower-order aberrations are also called refractive errors and include myopia, hyperopia and astigmatism. Standard LASIK treats only the lower order aberrations. Sometimes vision after standard LASIK can be as seen as that of the image below.

Map Transferred to Laser

Custom wavefront map is now lasered

How well you see? The qualitative measure of your vision depends on what higher-order aberrations you possess. Higher-order aberrations are irregularities other than refractive errors, and can cause such problems as decreased contrast sensitivity or night vision, glare, shadows and halos. Custom LASIK treats both,lower and higher-order aberrations.

Map Transferred to Laser

Understanding your vision requires taking both, the quantitative and qualitative measures into consideration. This is because it's possible to possess very good visual acuity yet have poor visual quality, and vice versa.

Using our wavefront technology, it is possible for us to first map these aberrations and then, with the help of the Zeiss CRS Master, develop a laser treatment plan to correct them. Wavefront LASIK goes beyond just correcting refractive errors, to actually improving your eye's visual capabilities such that you may see better after surgery,without glasses,than you did with glasses or lenses before the procedure.

Common Side Effects of Standard LASIK

Halos at night

Glare

Benefits of Custom LASIK

Greater possibility of achieving better than 20/20 vision.

Sharper vision than with standard LASIK.

Better visual quality and contrast sensitivity than with standard LASIK.

Reduced possibility of night vision disturbances and glare as compared with standard LASIK.

Banaji Eyecare is proud to bring Custom LASIK, one of the safest methods of performing LASIK, to you.

Custom Plus LASIK

Custom Plus LASIK is the most accurate and safe method of performing LASIK and Banaji Eyecare is the first center in India to start Custom Plus LASIK with iris registration. In Custom Plus LASIK, wavefront measurements are taken while you are in a sitting position, and next while treatment is done- in the lying down position. Between the two positions, the eye always rotates either towards or away from the nose. If this is not compensated for, there is a chance of treating the cornea in a position other that where it was measured. Previously, adjustments for these rotation movements were done manually.

Now with Custom Plus, digital pictures of the eye surface, pupil and iris are captured by the wavefront device first when the patient is in the sitting position. Another set of digital pictures are grabbed by the laser when the patient is in the lying down position. Both sets are then matched by aligning the same landmarks with each other and the treatment is delivered in exactly the same place and with the same precision with which it was measured. This technology is known as "Iris Recognition" or "Image Registration". This process of image registration or iris registration makes the normal Custom LASIK even more accurate and predictable.

What is Topography Guided LASIK?

At Banaji Eyecare, we are often referred many complicated cases, where wavefront and customized LASIK procedures have proved to be ineffective. This is where Topography guided treatments gain strength. With the help of technology at Banaji Eyecare, we are able to restore vision to those eyes that need it most. We consider these unhappy eyes our most valuable and treasured cases.

In this procedure, the cornea is digitally mapped with an instrument called Corneal Topographer, which gives an accurate idea of the lumps and bumps on the corneal surface. It is these bumps or irregularities on the corneal surface that cause the vision to degrade. Using a digital map of the corneal surface, topography-guided treatment allows for us to selectively get rid of these large and small bumps on the corneal surface, leaving it smooth and polished at the end of the procedure, in addition to correcting the spectacle number.

Banaji Eyecare is the only centre in India offering routine use of topography-guided LASIK treatments.